I would like to connect to the same ULN2803 ic 3 different types of relays, simultaneously:
1st type: 5Vdc relay
2nd type: 12Vdc relay
3rd type: 24Vdc relay
My problem is that I never did this before and I really don't know where to connect the PIN10 (Internal Clamping Diodes) ???
1st connection: 5Vdc ???
2nd connection: 12Vdc ???
3rd connection: 24Vdc ???
This connection must be done in order to protect the internal Darlingtons and also to avoid any reverse current because of the different voltages.
Does anybody have any experience on this issue ?
Thank you in advance.